11518525624553 has 2 divisors, whose sum is σ = 11518525624554. Its totient is φ = 11518525624552.

The previous prime is 11518525624531. The next prime is 11518525624577. The reversal of 11518525624553 is 35542652581511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11484216212569 + 34309411984 = 3388837^2 + 185228^2 .

It is a cyclic number.

It is not a de Polignac number, because 11518525624553 - 2¹⁰ = 11518525623529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11518525624495 and 11518525624504.

It is not a weakly prime, because it can be changed into another prime (11518525624453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759262812276 + 5759262812277.

It is an arithmetic number, because the mean of its divisors is an integer number (5759262812277).

Almost surely, 2^{11518525624553} is an apocalyptic number.

It is an amenable number.

11518525624553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518525624553 is an equidigital number, since it uses as much as digits as its factorization.

11518525624553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200000, while the sum is 53.

The spelling of 11518525624553 in words is "eleven trillion, five hundred eighteen billion, five hundred twenty-five million, six hundred twenty-four thousand, five hundred fifty-three".